首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Even plants can run a fever, especially when they are under attack by insects or diseases. But 21 humans, plants can have their
Even plants can run a fever, especially when they are under attack by insects or diseases. But 21 humans, plants can have their
admin
2014-09-27
17
问题
Even plants can run a fever, especially when they are under attack by insects or diseases. But 21 humans, plants can have their temperature 22 from 3,000 feet away— straight up. A decade ago, 23 the infrared(红外线的)scanning technology developed for military purpose and other satellites, physicist Stephen Paley 24 a quick way to take the temperature of crops to determine 25 ones are under stress. The goal was to let farmer 26 target pesticide spraying 27 rain poison on a whole field, which 28 include plants that don’t have the pest problem.
Even better, Paley’s Remote Scanning Services Company could detect crop problem before they became 29 to the eye. Mounted on a plane flown at 3,000 feet 30 , an infrared scanner measured the heat emitted by crops. The data were 31 into a color-coded map showing 32 plants were running "fevers". Farmers could then spot spray, using 50 to 70 percent less pesticide than they 33 would.
The bad news is that Paley’s company closed down in 1984, after only three years. Farmers 34 the new technology and long-term backers were hard 35 But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to 36 into operation. Agriculture experts have no doubt the technology works. "This technique can be used 37 75 percent of agricultural land in the United States," says George Oerther of Texas A&M. Ray Jackson, who recently retired from the Department of Agriculture, thinks 38 infrared crop scanning could be adopted by the end of the decade. But 39 Paley finds the financial backing 40 he failed to obtain 10 years ago.
选项
A、whose
B、which
C、what
D、where
答案
B
解析
此题属于语法题,在四个选项中,只有which可以放在ones前面,意指哪一些植物,故选项[B]which正确。全句可译为:十年前,物理学家佩利采用军用红外扫描技术为测量植物体温找到了一个快捷方式,从而可以确定哪些植物正受着病虫害的威胁。
转载请注明原文地址:https://kaotiyun.com/show/ysRd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Whatisthepassageabout?
TheSupremeCourt’sdecisionsonphysician-assistedsuicidecarryimportantimplicationsforhowmedicineseekstorelievedying
Evenplantscanrunafever,especiallywhentheyareunderattackbyinsectsordisease.But【21】______humans,plantscanhave
Evenplantscanrunafever,especiallywhentheyareunderattackbyinsectsordisease.But【21】______humans,plantscanhave
Evenplantscanrunafever,especiallywhentheyareunderattackbyinsectsordisease.But【21】______humans,plantscanhave
Properarrangementofclassroomspaceisimportanttoencouraginginteraction.Mostofushavenoticedhowimportantphysica
1921本题考查考生对于具体信息的听辨能力。从“BorninNewYorkonMay21,1921,Mr.MigdengraduatedfromColumbiaLawSchoolinl947”可知答案。
Harvard此题可先猜测,肯定是美国著名学府,注意第一个字母大写。
101是数字题,文中提到在28fields(领域)中有101奖项,所以必须听清数字前后的名词。
amongadvertisements此题从上下文中可以得到线索,报纸老登一些错误的东西,当它们不得不订正时,他们会把勘误放在广告当中,所以advertisement肯定要用复数形式。
随机试题
Somedayinthefuturewemaynothavemoneyinourpockets.Islifeeasierwhenpeopledon’tneedtocarryanycoinsforcurrenc
32岁女性,左乳房外上象限内触及3cm圆形光滑肿块8个月,质韧,活动佳。可能的诊断是
高压电缆的结构,按由内到外的排列顺序,正确的是
A;嗜酸性粒细胞B;嗜碱性粒细胞C;中性粒细胞D;T淋巴细胞E;B淋巴细胞介导细胞免疫的细胞是
A.药品储备制度B.处方药与非处方药分类管理制度C.制定和执行药品保管制度D.符合国家药品标准E.实行特殊管理国家对麻醉药品、精神药品、医疗用毒性药品、放射性药品
试述幼儿教师的职责。
“桃李不言,下自成蹊。”这句话体现的德育方法是()。
【2015年安徽.判断】德育是促进个体道德自主建构的价值引导活动。()
在Excel中,单元格C4中有公式“=A3+$C$5”,在第3行前插入一行之后,单元格C5中的公式为(53)。
Fromchildhoodtooldage,wealluselanguageasameansofbroadeningourknowledgeofourselvesandtheworldaboutus.When
最新回复
(
0
)